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Development of the Stainless Cast-Steel Exhaust Manifold
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English
Abstract
At Mitsubishi Motors, a thin-walled exhaust manifold, made of stainless cast-steel, has been developed with the aim of achieving higher heat-resisting reliability as well as weight reduction. The new exhaust manifold is made of ferritic stainless cast-steel, employing an advanced vacuum casting (CLAS). Its geometry was designed using finite element analysis and its durability was confirmed by testing both on various test devices and on a vehicle.
The exhaust manifolds has been adopted on a production engine model and has proven the following advantages over a conventional cast-iron ones;
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excellent heat resistance. weight reduction of over 20%.
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possible exhaust emission reduction as a result of lower heat-capacity of the exhaust manifold.
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Authors
Citation
Shimamoto, T., Asano, K., Shioya, Y., and Ando, S., "Development of the Stainless Cast-Steel Exhaust Manifold," SAE Technical Paper 930621, 1993, https://doi.org/10.4271/930621.Also In
References
- Kawamoto S. “Development of Stainless Steel Tubular Exhaust Manifolds” in Mitsubishi Motor Co. Technical Review 4 1992
- Ike M. “Development of Heat-Resistant Cast Steel for Exhaust Manifolds” in Int. J. of Materials and Product Technology 6 3 1991
- Taira S. “Thermal Stress and Thermal Fatigue” 1974
- Akiyama K. “Analysis of Thermal Fatigue Resistance of Engine Exhaust Parts” SAE Paper No. 910430